20241001 11133600 1.0 TRUE TRUE Vertical electrical sounding data is the oldest near-surface geophysical data collected by the ISGS in Illinois, and is the most prolific near-surface geophysical data in the state. This data was collected by many different geophysicists on several generations of instruments, in analog and digitial form. eer geol geophysics Illinois ISGS resistivity Legacy Electrical Earth Resistivity gathered as vertical electrical soundiungs (VES). Part of a program that used to be run by ISGS where geophysics data was gathered by request for the public throughout the state. ISGS Geophysics and Hydrogeology Section iVBORw0KGgoAAAANSUhEUgAAASwAAADICAYAAABS39xVAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAO xAAADsQBlSsOGwAACuBJREFUeJzt3Vtz01YXgOEly7Z8JoEkbUICLRCgtAM3vesP6H3/a39FL9rh psdpmLQlB0JzTmzLljprhzCd7wtUSiKs5f0+M5npTCMsK/hl29lbu5qmaSowKRkMJKjVJKhUJn0q wAdR/TAPgyJUoogLC68QLABmECwAZhAsAGYQLABmECwAZhCsaaQzVYJg0mcBXDuCNSWSOJZ4b09G h4cS1OsS3bwpYas16dMCrhXBmhbjscT7+zLc25OwXpdap0OwrgOj1VIhWJYliegyBZ3pXmk0pPPg wXu/PR2PJRkOJWw0SvWWUc+pv7Ul0cKChBknw/Y3NmTc70tzeVkqtVqmY3a//16i+XlpLS9ne4yt LRm+fu3OK5qby3QMikWwjEqTRI7X1iTp96X3+eeZjtER2Mn6uvQ++6xUs+R1iZFGS59L1mAlo5F7 DhphyRissNl0o8+s9Pur7fZZ4FEKBMuoIAikfvPm2Qs2I33xtVZWJKiW68cettvS0NFVjs/cdJSk 0Q7CMPMxvcePc51XrddzXyiPcv3NRXYarNnZXFdMRyT1Eo2szulb2mq3m/OgIFesMB0IFgAzCBYA MwgWADMIFgAzCBYAMwgWADMIFgAzCBYAMwgWvKArAna/+066T54UOntd1zfqHTN0zSKuH8EqSpq6 Bbr1+fnMi3NRnNOXL90CcV1/OfPsWWGPc/zihZu5X7txQyo51i0iG4JVkPjgQEYnJyI7O9JYXCzq YZCRrqHUBdbN27cLvWbNpSUZHR8Tq4IQrILo2w59gbB4tjw69+8X/hgsmC4WwSpKEPA5BnDNCBYA MwgWADMIFgAzCBYAMwgWADMIFgAzCBYAMwgWADMIFlACSRy7NYjsBPR+BKtAez/84PYObN25U+TD YAq8/PZbaS8vy+yXX076VEqNYBV5cdttFsEik869e+4fN7wfwSpQZ3W1yD8eU2Tm6dNJn4IJBAuA GQQLgBkEC4AZBAuAGQQLgBkEC4AZBAuAGQQLgBkEC5OXpm+3xipyLz/dxUg3OmUnI7sIFkqx8Pdk fd3t31gvMFj6GG65VK0mYbMpPjr980+pdjpSm5kRiwgWJk7vUFCfmZFKtdi/jo2FBbe5ra+xUoOd HUlGI4IFXCVYjaWlwi9gtddzXz5r37tnekE+IyzAIzXjwSZYAMwgWADMIFgAzCBYAMwgWPDqV/o6 fSIoePoEisNPDl6I9/dldHQkyWAgzdu3J306uCSCBS9Uu12J9/akfuvWpE8FV0Cw4AXd86919+6k TwNXRLBw7XQh8+DVK/fWS9ftFSEdjeRobc1tjRVlHDXpMf2tLTfKChsN8VGaJG8DbhHBwrXTt14H P/4o0dxcYcHSBdOHv/wi3fv3JdL9/ILgv8/r8FCO19bcizVcXBQfHf36q1RbLWmurIhFBAvXTu+6 sDA3J2GBa9Z0AfPi11+fhSpDrM6XpXQfPZL67Kz4Kh2P346yLCJYuHZuBBNFhV/ZvNMTdJF1ND8v Pus9eSKWESwAZhAsAGYQLABmECwAZhAsAGYQLABmECwAZhAseE0nUuqsed2YwepylX8/F51Ea/15 vA/BQnnCMRxKJYoyv+B0baAe53aByTLbPU3dY+gE0vNJp3rLmaPff5fu6qrbr++iY3RmuB5TZmkc y8FPP0l9bk6a17zsSJ+/Xjc3GTjjqoKiECyUwvj4WE43NqR9964EWRYmp+nbe1zpFmFZ1izqSGrv +XNpLi25L33x6RKf1sqKC+VF+q9eyfjoyM2Q11vUFEWfS3xw4B4n68LsdDSSg59/doGqdbtuIfh/ HTvc23PXLs/ypMH29lm4u92Lo/4BESyUQqC7MbdaIjnezriRUq2W/S2QjrAGAxeu85GCjs50kfY7 D4lj6W9vuxgU6fTlSxcsHcVkDVYSx7L//Ll7Dnp+jY8//s+R4Olff7k/X9dVZh016vfrPwxFLWTP g2ChFM5HOpkFgdu9OM+W6zqKmvvqq/97W6MRG/f7Z3v2/c//01vknI/GitR7/PjtW+KswkZDlr/5 xkVbZQlQ7+FDGb95W5xV3utcJIIFv1wQnuHurrvfuy4MDi4K04f43CYIcsXqssdo3KolGCldFsGC 93Rk5X5LOOEPlK8qjWMXX/2cyb29nkIEC97TF/c0vMDT8dh9FtZcXp6K53MRggVMiUoUyY0vvsj1 iwtrCBYwLYJg6vdcnO5nB2CqECwAZhAsAGYQLPgjSSRN07OZ8canMPiKYMEbp5ub0t/cdEtY3DKW Kf5t2jsZWcz9LgQL3tC5SboE52R9PdNC4WnU39py0x6i2dm3S3osIVjwRv3GDZl59syNMNwtaTyU 6OLv0ehst2yDCBb8EQRSbbfFZ607d87+w+hneAQL8ElgM1TnCBYAMwgWADMIFgAzCBYAMwgWADMI FgAzCBYAMwgW/JKmUzEfyVcEC97QJTnx7q5b+FvVffk8XPycDIduA1bdVs1itAkW/KHBOjx0m5UW uYtzmfU3Nly49W4VLlrGECx4Q0dWuq27u/e50durXFX91i03wirDLs6XQbDgj8tsVjplqp2OWEaw AJhBsACYQbAAmEGwAJhBsACYQbAAmEGwAJhBsACYQbAAmEGwAJhBsACYQbAAmEGwAJhBsACYQbAA mEGwAJhBsACYQbAAmEGwAJhBsACYQbAAmEGwAJhBsACYQbAAmEGwAJhBsACYQbAAmEGwAJhBsOCt NI4lTRKpRNGkTwUZESx46+i336TSaEj7008nfSrIiGDBW2GnM+lTQE4EC95qraxM+hSQE8ECYAbB AmAGwYJX0tFI+pubUp+dlbDdznRMvL8vJ+vr0nnwQMJms/BzxLsRLHhlfHoqUqnIcHdXmhmDFQSB VOp1dxwmi2DBK1X9zaAGKMfcq2qvJ51u14ULk0Ww4JcgOItW7sOIVRkQLJRPmspgZ0fS8ViihQUJ eCuGNwgWSidNUxkfH7vPjdLhUIJGY9KnhJIgWCgdHVFFi4sius6PWOFfCBZKKWRBMi5AsACYQbAA mEGwAJhBsACYQbAAmEGw4Jc0leO1NYmPjmTm6dNJnw1yIljwSxCc3aUhDCd9JrgEggXvND76aNKn gEsiWADMIFgAzCBYgEpTGb5+7T7f4q6i5UWwABFJ4lj6W1tS7XaldecO16SkCBYg4m5l01hclLDV 4nqUGMEC3qjfvMm1KDmCBcAMggXADIIFwAyChVIZ/v332Z6BOT4AP/njDwkbDYnm5zNvjDrY3pbO 6uoVzxYfGsFCqYxPTiQZDGQ8GGQKlk5HiA8PZXR4mDlY/Y0Nt/tza2WFe8YbQ7BQKs3lZWmkaeZ9 ACu1mnRXVyWoZv+r3PrkE6n1esTKIIKF0sm7aalGKw99+xguLeU8K5QBwQJgBsECYAbBAmAGwQJg BsECYAbBAmAGwQJgBsECYAbBAmAGwbrMrXQ3NtxWUZUoKuanAuBCBCsn3aig2mrJ8YsX0n30KO/h AK6AYOWkI6vB69fSffjwKtcdwCUQrLyCQKK5uctcawBXRLAAmEGwAJhBsACYQbAAmEGwAJhBsACY QbAAmEGwAJhBsACYQbAAmEGwAJhBsACYQbAAmEGwAJhBsACYQbAAK9JUktFIgjCUoFIRHxEswIhk OJTjtTVpLC1JrdcTHxEswIggDKXa7Uql6u/L1t9nDhgTVKvSWFyUIAjEVwQLMCTw9LOrcwQLgBkE C4BY8Q9mGWwN+hkPpAAAAABJRU5ErkJggg==