Lake Francis Case is a 102,000-acre Missouri River reservoir in Gregory, Lyman, and Brule counties in south-central South Dakota — the second largest of the four Missouri River mainstem reservoirs in South Dakota and a premier walleye, smallmouth bass, and pike fishery drawing anglers from across the northern Great Plains. The lake stretches approximately 107 miles from Fort Randall Dam at the southern end to Big Bend Dam at the northern end, creating an expansive Missouri River impoundment with 540 miles of shoreline across the rolling prairie and river breaks of south-central South Dakota. The Missouri River walleye fishery on Lake Francis Case is nationally recognized — the lake produces trophy walleye in numbers that draw dedicated walleye anglers from across South Dakota, Nebraska, and Iowa specifically targeting the Francis Case corridor during the spring spawn and fall feeding periods. Smallmouth bass, northern pike, channel catfish, and white bass round out the year-round fishery. The communities of Chamberlain and Oacoma on either side of I-90 at the Missouri River crossing anchor the primary boating infrastructure and service market for the lake. Find Boat Services lists verified boat repair, motor service, electronics installation, trailer repair, and winterization providers serving Lake Francis Case within 35 miles across Gregory, Lyman, and Brule counties.
Electronics Installation Specialists near Lake Francis Case
Showing 1 verified Electronics Installation providers within 50 miles of Lake Francis Case
Electronics Installation FAQ
Standard installation labor typically ranges from $125 to $200 per hour. A basic single-unit graph install often costs $250–$500, while a full-boat networking project with multiple displays and NMEA wiring can range from $1,500 to $3,500 depending on the vessel’s complexity.
For a standard Midwest bass or walleye rig (two dash units, one bow unit, plus NMEA networking), labor typically ranges from $800 to $1,400. This ensures all units share waypoints, maps, and transducer data seamlessly across the boat’s network.
In 2026, the most common cause of sonar “noise” is electrical interference from the trolling motor or poor grounding. Professional riggers solve this by using shielded transducer cables and running a dedicated “clean power” harness directly to a lithium cranking battery, bypassing the main fuse block.
For serious anglers, yes. FFS (like LiveScope) allows you to see fish reacting to your lure in real-time. This tech is highly effective in the clear-water reservoirs of the Midwest like Table Rock Lake, though it requires a high-amperage dedicated power source.
Choosing the right 2026 battery depends on your power needs and budget:
Flooded Lead-Acid ($100–$200): Best for budget-conscious boaters. High maintenance (needs water) and shortest lifespan.
AGM (Absorbed Glass Mat) ($250–$500): The “set it and forget it” choice. Maintenance-free, vibration-resistant, and perfect for starting engines or moderate electronics.
Lithium (LiFePO4) ($700–$1,200+): The premium choice for trolling motors and live sonar. They are 70% lighter, charge 4x faster, and last up to 10 years, making them the lowest “cost-per-year” investment despite the high upfront price.
Flooded Lead-Acid ($100–$200): Best for budget-conscious boaters. High maintenance (needs water) and shortest lifespan.
AGM (Absorbed Glass Mat) ($250–$500): The “set it and forget it” choice. Maintenance-free, vibration-resistant, and perfect for starting engines or moderate electronics.
Lithium (LiFePO4) ($700–$1,200+): The premium choice for trolling motors and live sonar. They are 70% lighter, charge 4x faster, and last up to 10 years, making them the lowest “cost-per-year” investment despite the high upfront price.